
Ratings & Reviews for DAP Flexible Floor Patch and Leveler Gray Interior/Exterior Waterproof , Patching compound 1 Gallon(s)
Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this floor leveler for effectively filling gaps, voids, and uneven subfloor areas, with most noting it bonds securely to old surfaces and works well on concrete, plywood, and tile. Reviewers consistently describe it as easy to apply with standard tools like putty knives, feathering smoothly and remaining workable long enough to achieve level finishes. Drying times vary significantly by thickness—thin applications dry within 24 hours, while thicker layers take two to four days or longer, sometimes remaining soft in humid conditions. Some find it extremely difficult to sand after curing, requiring chisels or scrapers for high spots. Despite these drawbacks, most customers consider it reliable and effective for subfloor preparation.
Customer review summary generated by AI, including incentivized reviews.Only Thing For OSB
Would RecommendThere isn't much out there for leveling OSB subflooring. I've used this is multiple rooms, in small spots and larger areas. For the larger areas I've set out shims to give me something to level up to and it's worked pretty well. If you spread it in thin layers as advised it spreads pretty easily and can be feathered at the edges -- I usually use my finger to flatten out the outer edge. Because it stays flexible this stuff won't create a crunchy lump under laminate flooring if you don't get it qu...
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s) Verified Purchaser
That Lowe’s carries DAP in that size.
You are the only one in the area that carries it, lol.
Verified Purchaser
Nice product
Nice texture out of container. Spreads to near feather finish.
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s)
DAP
Would RecommendFor floor leveling this is great and easy to work with!!!
Worked Fine
Would RecommendFor small areas, its a paste so you will need a trowel of some sort, worked fine on my problem area, where I was putting in floor tiles...
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s) Verified Purchaser
Terrible terrible terrible!
Would Not RecommendTerrible! Not sure if got a bad batch but it was like using half dried sanded grout. It doesn’t level and you can not feather it. After it drys you can not get it off, i thoight i might be able to sand dowm the gobs and mounds and mess but when you put a sander to it it heats up amd turns to rubber. Buyer be wear it sucks!
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s)
Thank you for posting your feedback. We are sorry to hear about your frustration with this product. DAP Flexible Floor Patch and Leveler is thick/tro...

Works great
Would RecommendWorked perfectly to even out a low spot on a subfloor while laying down laminate flooring. Not sure what some are complaining about. This product isn't too stiff at all. Used a trowel to spread it out and went to work on my evened out floor the next day.
you NEED a spray bottle of water!
Would RecommendOut of the tub this stuff is like sandy play doh. Its almost impossible to use. Spray some water in the tub, and mix around a little bit. As you apply it to your floor spray a little more water and it will apply almost like joint compound. It takes some patience and finess but this stuff does work. I think it just dries out on the shelf.
Good and Bad
Would RecommendI really did not know how to rate this. For what it does I would give it 4 stars. For application 3 stars. For online documentation 2 stars. It is a very good product as far as being strong and does not crack but I felt like it was hard to work with. What videos I could find it looked like it went on like drywall mud but in reality it was more like a combination of concrete and chewing gum. This made it hard to apply a smooth coat or to even smooth it out. But again it is good for uneven ...
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s) Verified Purchaser
Difficult to spread
Would Not RecommendI bought this to level a significantly low corner in a bedroom, about 1/4" drop over about 4 SF, since it was described as a flexible leveling compound and floor patch. I found it very thick and difficult to spread evenly. I finally got the hang of applying it with a wide spatula and pressing very hard to feather it so it would not stick or curl up, but it required me to applying many thinner layers and letting it dry between applications. I did get it level and it has worked out okay, but I ...
From Flexible floor patch and leveler Gray Interior Patching compound 32 Ounce(s) Verified Purchaser
Thank you for posting your feedback. We are sorry to hear about your frustration with this product. DAP Flexible Floor Patch and Leveler is a "tr...

Subfloor leveler prior to Carpet
Would RecommendLove this stuff. Easy and convenient to use. Blended perfectly to spread and lay evenly when spread with putty knives. Would recommend and will buy again if needed.
Floor patch
Would RecommendUsed to level concrete floor. Was thicker than expected but did the job
Verified Purchaser
Great product!
Would RecommendI used this to level a subfloor on a house with concrete pier supports. It didn’t dry super fast, but I used it in multiple passes to bring height of floor up to where it needed to be.
Verified PurchaserVerified Pro
stated coverage is misleading, slow to harden
Would RecommendThe actual coverage is a fraction of the stated amount since it was based on 1/16" which you cannot really do. Anything 1/4" or more takes days to harden. Between 1/16" and 1/4", it works fine.
Verified Purchaser
Thank you for posting your feedback. We are not clear as to the intent of your commentary indicating: "stated coverage is misleading, slow to har...

FLoor Leveler
Would Not RecommendNot what I expected. This product contains a lot of sand, and when it dries it is very hard. If you need to sand this product after it dries, you will have a very difficult time. The product would probably ok if sanding isn't required. Also it's a little thick in consistency.
Thank you for posting your feedback. We are sorry to hear about your frustration with this product. DAP Flexible Floor Patch and Leveler is a "tr...

Thank you for posting your feedback. DAP Flexible Floor Patch and Leveler is recommended for use on plywood subfloors or concrete surfaces. DAP Flexi...